PT-2026-8019

Name of the Vulnerable Software and Affected Versions BACnet Stack versions prior to 1.5.0.rc3 Description The BACnet Stack software contains a flaw in its file writing functionality. Specifically, there is a lack of validation for user-supplied file paths, which could allow attackers to write...

BACnet Stack 缓冲区错误漏洞

BACnet Stack is an open-source protocol stack for BACnet, designed for use in embedded systems, Linux, MacOS, BSD, and Windows. Versions of BACnet Stack prior to 1.5.0rc4 and 1.4.3rc2 contain a buffer error vulnerability. This vulnerability arises from handling WriteProperty requests with incorre...

PT-2026-8020

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0rc4 and 1.4.3rc2, a malformed WriteProperty request can trigger a length underflow in the BACnet stack, leading to an out‑of‑bounds read and a crash DoS. The issue is in wp.c within wp decode service...

CVE-2026-21878: Improper Limitation of a Pathname to a Restricted Directory

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0.rc3, a vulnerability has been discovered in BACnet Stack's file writing functionality where there is no validation of user-provided file paths, allowing attackers to write files to arbitrary...

BACnet Stack 路径遍历漏洞

BACnet Stack is an open-source protocol stack for BACnet, suitable for embedded systems, Linux, MacOS, BSD, and Windows. Versions of BACnet Stack prior to 1.5.0.rc3 contained a path traversal vulnerability. This vulnerability stemmed from the lack of validation for the file writing function,...

CVE-2026-26264: Out-of-bounds Read

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0rc4 and 1.4.3rc2, a malformed WriteProperty request can trigger a length underflow in the BACnet stack, leading to an out‑of‑bounds read and a crash DoS. The issue is in wp.c within...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read via the npduisexpectedreply function. An attacker can cause a crash or misroute replies by sending specially crafted PDUs that trigger out-of-bounds reads. Remediation A fix was pushed into the master branch but not y...

CVE-2025-66624

CVE-2025-66624 affects the BACnet Protocol Stack prior to 1.5.0.rc2. The npdu_is_expected_reply function indexes APDU bytes (request_pdu[offset+2/3/5] and reply_pdu[offset+1/2/4]) without validating existence, allowing out-of-bounds reads in tiny PDUs. This can cause an immediate crash (DoS) on A...

CVE-2025-66624 BACnet-stack MS/TP reply matcher OOB read

BACnet Protocol Stack library provides a BACnet application layer, network layer and media access MAC layer communications services. Prior to 1.5.0.rc2, The npduisexpectedreply function in src/bacnet/npdu.c indexes requestpduoffset+2/3/5 and replypduoffset+1/2/4 without verifying that those APDU...

CVE-2025-66624 BACnet-stack MS/TP reply matcher OOB read

BACnet Protocol Stack library provides a BACnet application layer, network layer and media access MAC layer communications services. Prior to 1.5.0.rc2, The npduisexpectedreply function in src/bacnet/npdu.c indexes requestpduoffset+2/3/5 and replypduoffset+1/2/4 without verifying that those APDU...

BACnet Stack 缓冲区错误漏洞

BACnet Stack is a BACnet open source protocol stack C library for embedded systems, Linux, MacOS, BSD and Windows. A buffer error vulnerability exists in BACnet Stack versions prior to 1.5.0.rc2, which stems from the npduisexpectedreply function failing to validate the presence of an APDU byte,...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

BACnet Stack Security Vulnerability

BACnet Stack is a BACnet open source protocol stack C library for embedded systems, Linux, MacOS, BSD and Windows. A security vulnerability exists in BACnet Stack versions prior to 1.3.2 that stems from the presence of buffer over-reads...

CVE-2023-51773

The BACnet Stack , an open-source protocol stack library for embedded systems, Linux, MacOS, BSD, and Windows, is vulnerable to an APDU buffer over-read in versions prior to 1.3.2 . The root cause is located in the bacapp_decode_application_data function within the bacapp.c file. This vulnerabili...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-51773

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-51773: Buffer Over-read

BACnet Stack before 1.3.2 has a decode function APDU buffer over-read in bacappdecodeapplicationdata in bacapp.c...

CVE-2023-0053

SAUTER Controls Nova 200–220 Series with firmware version 3.3-006 and prior and BACnetstac version 4.2.1 and prior have only FTP and Telnet available for device management. Any sensitive information communicated through these protocols, such as credentials, is sent in cleartext. An attacker could...